Complete MIDI Studio V2 codebase lane with SSoT cleanup song model finalization playback export manifest readiness and final UAT audit - PR_26146_125-132-midi-studio-v2-codebase-completion-lane

Author: ToolboxAid

docs/dev/reports/PR_26146_125_132_bundle_validation.md

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+# PR_26146_125-132 Bundle Validation
+
+Date: 2026-05-30
+
+## Scope
+- MIDI Studio V2 codebase completion lane.
+- Baseline: PR_26146_117-124.
+- Primary implementation: Octave Timeline lane headers no longer expose duplicate editable GM Type, GM Instrument, Volume, or Pan controls. Instruments tab remains the editable SSoT for those values.
+- Targeted coverage: PR125-132 Playwright slice added for SSoT, Song Sheet, canvas timeline, instruments, playback, export, manifest, and Workspace/tool launch split.
+
+## Validation
+- PASS: `node --check tools/midi-studio-v2/js/controls/InstrumentGridControl.js`
+- PASS: `node --check tests/playwright/tools/MidiStudioV2.spec.mjs`
+- PASS: `npx playwright test tests/playwright/tools/MidiStudioV2.spec.mjs --grep "PR125-132" --reporter=line`
+  - 2 passed.
+- WARN: Extra non-required check `npx playwright test tests/playwright/tools/MidiStudioV2.spec.mjs --grep "imports UAT manifest and plays" --reporter=line`
+  - Fails on legacy spreadsheet-DOM expectations against the current canvas-backed timeline renderer.
+  - Not used as the required MIDI Studio PR125-132 validation signal.
+- WARN: `npm run test:workspace-v2`
+  - Timed out twice at 240s and 600s with no final runner result.
+  - Adjunct direct Workspace Manager V2 Playwright command also timed out at 420s.
+  - Generic report churn from the timed-out lane runner was restored.
+- PASS: `git diff --check`
+  - Exit code 0. Windows line-ending warning only.
+
+## Coverage
+- `docs/dev/reports/playwright_v8_coverage_report.txt` refreshed by the passing PR125-132 MIDI Studio Playwright run.
+- `docs/dev/reports/coverage_changed_js_guardrail.txt` reports no changed runtime JS coverage warnings.
+
+## Result
+PASS for the MIDI Studio V2 PR125-132 bundle. Workspace validation is recorded as WARN because the required wrapper did not complete inside a 10 minute ceiling.

docs/dev/reports/PR_26146_125_132_duplicate_usage_review.md

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+# PR_26146_125-132 Duplicate Usage Review
+
+## Findings
+- PASS: No duplicate editable owner was detected across visible MIDI Studio tabs in the PR125-132 Playwright audit.
+- PASS: Octave Timeline no longer renders duplicate GM Type or GM Instrument dropdowns for lane headers.
+- PASS: Octave Timeline no longer renders duplicate Volume or Pan lane-header sliders.
+- PASS: Instrument GM Type, GM Instrument, Volume, Pan/Balance, Octave Range, Transpose, Velocity, and Duration remain owned by the Instruments tab.
+- PASS: Diagnostics remain read-only except explicit actions such as Copy JSON and Clear Status.
+
+## Cleanup Applied
+- Replaced timeline lane-header instrument dropdowns and mix sliders with a read-only instrument summary output.
+- Preserved timeline lane selection, mute, solo, delete, section visibility, and canvas note editing.
+- Updated Playwright ownership classification for the read-only lane summary.
+
+## Accepted Repeated Displays
+- Generated ID appears as read-only derived display where needed.
+- Export and manifest summaries repeat selected song metadata as read-only status.
+- Timeline section labels and sequence selections mirror each other for navigation, not duplicate editing.
+
+## Residual Risk
+- Advanced lane source text remains editable in Auto-Create Parts and continues to feed the canonical lane text workflow. Canvas editing writes the same canonical lane data through the timeline editor; this is intentionally covered as an editing workflow and not a separate tab owner in the visible control audit.

docs/dev/reports/PR_26146_125_132_export_manifest_readiness_audit.md

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+# PR_26146_125-132 Export And Manifest Readiness Audit
+
+## PASS
+- Export tab owns Save WAV, Save MP3, Save OGG wording and rendered output type selection.
+- SoundFont, render quality, and sample rate controls remain visible and red/unwired.
+- Export readiness shows selected song, classification, generated ID, sequence length, note count, and instrument count.
+- Save action does not claim file creation. With a target path set, it reports rendering as not implemented.
+- Manifest readiness reports missing assignments as WARN rather than hard failure.
+- Tool launch shows Import JSON and Export JSON workflows.
+- Workspace launch shows Return to Workspace and hides standalone project save/import/export controls.
+
+## WARN
+- Real rendered audio generation is still unwired by design.
+- Game assignment runtime sync remains future/unwired by design.
+
+## Evidence
+- Targeted PR125-132 Playwright passed.
+- Export status and red/unwired styling were checked in the PR125-132 Playwright slice.

docs/dev/reports/PR_26146_125_132_final_uat_audit.md

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+# PR_26146_125-132 Final UAT And Codebase Audit
+
+## PASS Implemented Workflows
+- Song Details: Classification remains human-entered, generated ID remains read-only and derived.
+- Song Sheet: first-class sections, custom sections, populated-only Available Sections, sequence add/duplicate/move/remove, apply targets, parse/generation.
+- Octave Timeline: canvas-backed editing, section labels/colors, section selection sync, frozen Bar/Beat metadata, piano/canvas audition path.
+- Instruments: selectedInstrumentId sync, GM Type/Patch ownership, mix/range controls, duplicate/order/delete safety, audition keyboard.
+- Playback: Play, Stop, natural completion, and loop state covered by targeted validation.
+- Export: Save WAV/MP3/OGG ownership, readiness summary, honest not-implemented status.
+- Manifest/Workspace: game assignment summaries and launch-mode split covered by targeted validation.
+
+## WARN Partial Or Future Workflows
+- SoundFont/render pipeline remains red/unwired.
+- Future MIDI input and advanced MIDI-to-canonical conversion remain red/unwired.
+- Future history controls remain red/unwired.
+- Song Sequence drag/drop remains red/unwired.
+- Workspace Manager V2 required validation wrapper timed out in this environment.
+- A non-required legacy manifest playback test still expects spreadsheet DOM note cells even though the current timeline is canvas-backed.
+
+## FAIL Broken Workflows
+- None observed in the targeted MIDI Studio V2 PR125-132 Playwright validation.
+
+## Duplicate Usage Findings
+- Removed timeline lane-header editable GM Type/Patch dropdowns.
+- Removed timeline lane-header editable Volume/Pan sliders.
+- Retained read-only timeline instrument summary and Instruments-tab editable ownership.
+
+## Recommended Next Work
+- Investigate why the Workspace Manager V2 lane wrapper and direct Workspace spec hang past long timeouts in this environment.
+- Decide whether Advanced lane source text should remain an editable power-user surface or become a read-only derived display in a future lane.
+- Wire real SoundFont/render export when an audio rendering pipeline exists.

docs/dev/reports/PR_26146_125_132_playback_audit.md

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+# PR_26146_125-132 Playback Audit
+
+## PASS
+- Global Play starts audible preview from the selected canonical song model.
+- Natural completion returns Play to enabled and Stop to disabled.
+- Loop mode shows looping status and advances the playhead.
+- Stop clears active playback and returns controls to the stopped state.
+- Section header selection from the timeline synchronizes to the Song Sequence selection.
+- Canvas edits are included in playable timeline data.
+- Instrument audition keyboard uses the selected instrument and range/settings from Instruments tab ownership.
+
+## Covered By Playwright
+- `validates PR125-132 codebase completion SSoT song sheet timeline instruments playback and export`
+- `validates PR125-132 workspace and tool launch ownership split`
+
+## WARN
+- The broader Workspace Manager V2 suite did not complete through the required lane wrapper. No playback-specific failure was observed in the targeted MIDI Studio validation.

docs/dev/reports/PR_26146_125_132_song_model_audit.md

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+# PR_26146_125-132 Song Model Audit
+
+## PASS
+- Name, Classification, generated ID, Tempo, Key, Style, Song Sheet sections, Song Sequence, Instruments, generated/manual notes, and export metadata remain on the canonical selected song model.
+- Generated ID remains `camelCase(Name) + "-" + Classification`.
+- The PR125-132 Playwright audit verified the active song after classification update as `camptownRacesUatReel-Loop`.
+- `Object.hasOwn(app, "selectedSongId")` remains false; active song state is derived through the canonical payload and selected song state.
+- Parse/Generate updates the canonical arrangement, Octave Timeline, diagnostics, JSON Details, and status.
+
+## Notes
+- The selected song ID follows the generated ID after classification changes.
+- Song Sheet sequence order is the build/playback order used by timeline section labels.
+- Manual note edits made through the canvas are reflected in canonical lane text and playable timeline data.
+
+## WARN
+- Workspace Manager V2 validation wrapper timed out, so cross-tool save ownership could not be revalidated through the required `npm run test:workspace-v2` command in this run. The PR125-132 targeted Workspace launch split test passed.

docs/dev/reports/PR_26146_125_132_ssot_ownership_matrix.md

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+# PR_26146_125-132 SSoT Ownership Matrix
+
+| Canonical value | Editable owner | Other displays/actions |
+| --- | --- | --- |
+| Song name | Song Setup / Song Details | Export readiness, diagnostics, manifest readiness |
+| Classification | Song Setup / Song Details | Classification help, export readiness, manifest summary |
+| Generated ID | Derived from Name + Classification | Read-only Song Details, export readiness, diagnostics |
+| Tempo | Song Setup / Song Sheet | Timeline and diagnostics read derived arrangement |
+| Key | Song Setup / Song Sheet | Diagnostics and JSON Details |
+| Style | Song Setup / Song Sheet | Diagnostics and JSON Details |
+| Song Sheet sections | Song Setup / first-class section editors | Available Sections and timeline section labels are derived |
+| Song Sequence | Song Setup / Song Sequence builder | Octave Timeline section header navigation mirrors selection |
+| Apply Song Sheet To | Song Setup / Apply controls | Generation summary and diagnostics are derived |
+| Lane note text | Auto-Create Parts lane source and Octave Timeline canvas editor | Timeline diagnostics, export note counts |
+| Instrument GM Type/Patch | Instruments tab | Octave Timeline shows read-only lane summary |
+| Instrument mix/range settings | Instruments tab | Audition keyboard and timeline playback use derived settings |
+| Playback state | Global transport and Octave Timeline timing preview controls | Status labels and playhead are derived |
+| Export targets | Export tab | Export readiness and diagnostics are derived |
+| Manifest readiness | Derived from canonical payload | Diagnostics and Export tab summaries |
+
+## Enforcement
+- Duplicate visible editable owners are checked by `visibleMidiStudioControlOwnership`.
+- Future or incomplete controls must carry red/unwired state and explanatory tooltip/status.
+- Diagnostics are treated as read-only except explicit diagnostic actions.